TWI384386B - An optical input device, an electronic device, and an optical input system - Google Patents

Description

Optical input device, electronic device, and optical input system

The present invention relates to an input device, an electronic device, and an input system, and more particularly to an optical input device, an electronic device having an optical input function, and an optical input system.

A computer input device generally refers to a hardware device that can input a coordinate displacement signal to a computer device (such as a personal computer, a notebook computer, or a personal digital assistant, etc.). There are many types of computer input devices, such as a mouse. The trackball device, the touchpad, the tablet, the joystick, and the like are all included. In addition, the mouse can input a coordinate displacement signal to the computer device according to the movement of the user, and the mouse also has a roller, and the roller can also control the vertical scroll or the lateral scroll of the windowed interface, and is further disposed under the roller. With the micro switch, the user can press the scroll wheel to release the confirmation command. Therefore, on the application window system, the mouse becomes the most popular human interface.

In addition to using the mouse as a window interface for computer devices, the technology of the touchpad has also been developed. The touchpad is mounted directly on the computer device for the user to control the cursor directly with the finger on the touchpad. Slip and click execution. Currently, the touch panels are roughly classified into two types, one is a resistive touch panel, and the other is a capacitive touch panel. The operation principle of the resistive touch panel is to use a voltage drop to position the coordinate axis. When the user's finger or object touches the touch panel, the loop is turned on and a voltage drop is generated to achieve the purpose of calculating the coordinate position; The structure of the capacitive touch panel is a single layer or multiple layers of patterned Indium Tin Oxide (ITO) layers to form a row/column sensing element matrix when the user's finger Or when the object touches the touchpad, the electric field of the indium tin oxide layer is lost due to the touch of an object such as a finger, thereby calculating the current coordinate position.

However, whether it is a resistive touch panel or a capacitive touch panel, the design is much more difficult. In terms of wiring, the capacitive touch panel needs to connect at least 15 lines, and the higher the sensing resolution requirement, the more complicated the wiring, which makes the production more difficult. In addition, since the sensing unit matrix is arranged in the same layer space, this will squeeze the touchable area of the sensing unit matrix, and the reduced area will result in a decrease in sensitivity, and the adjacent traces are also prone to capacitance leakage problems, especially temperature. Humidity easily affects the correctness of the sensing.

In addition, the optical sensing method has been developed to control the computer device, that is, an optical sensing window is mounted on the computer device, and a micro switch is disposed under the optical sensing window for the user to press the optical sense. The method of measuring the window is to give an instruction to confirm; the optical sensing window can be divided into two types of action: image comparison and optical refraction. Although the user can directly control the moving direction of the indicator in the windowed interface or the scrolling direction of the reel through the optical sensing window, the problem of such an optical sensing device is that when the user performs a click operation or double click The system operation program still needs to be completed by pressing the optical sensing window or pressing a button on the mouse (for example, a left button or a right button), and the operation is still slightly complicated.

For example, after the user moves the indicator in the windowed interface to the object to be executed through the optical sensing window, the object needs to be selected again by pressing the optical sensing window or the button to open the object. The corresponding program function, so there is still room for improvement in ease of operation.

Although the above computer device with optical sensing window can improve a lot of operation convenience, but also uses two optical sensing modules (one for the optical sensing window and the other for controlling the mouse indicator), The manufacturing cost of the computer device is increased, and the power consumption is relatively increased. In addition, the computer device needs to increase the volume to accommodate two optical sensing modules.

Therefore, how to provide an input processing method for a computer input device to improve its operational convenience has become an urgent problem for technical R&D personnel in related fields.

In view of the above problems, the present invention provides an optical input device, an electronic device, and an optical input system, thereby improving the touch-sensitive or optical input device of the conventional electronic device, and the operation operation thereof is complicated, and the user does not use it. Very convenient question.

The optical input device disclosed in the present invention is applied to an electronic device to enable the electronic device to perform a predetermined function. The optical input device comprises a light source generator and a light source. The light source generator has a body and a light source. The light source is disposed in the body and emits a light to pass through the body to form a light image. The photosensitive plate is electrically connected to the electronic device, and the photosensitive plate has a microprocessor inside. The light pattern image generated by the light source generator is projected onto the photosensitive plate, and the photosensitive plate captures the dynamic change of the light pattern image, and outputs a control signal to the microprocessor according to the shape of the light pattern image, by using the microprocessor The control signal is transmitted to the electronic device to enable the electronic device to perform a corresponding preset function.

The electronic device disclosed in the present invention comprises a main body and a light source generator, wherein the main body has a microprocessor inside, and the main body surface has a photosensitive plate electrically connected to the microprocessor. The light source generator has a body and a light source, and the light source is disposed in the body, and emits a light to pass through the body to form a light image. The light pattern image generated by the light source generator is projected onto the photosensitive plate, and the photosensitive plate captures the dynamic change of the light pattern image, and outputs a control signal to the microprocessor according to the shape of the light pattern image, so that the electronic device performs The corresponding preset function.

The optical input device, the electronic device, and the optical input system of the present invention pass through a dynamic optical sensing control mode to enable the electronic device to perform different preset functions, thereby providing the user with a multifunctional input device, and the user The control command can be quickly and conveniently issued to the electronic device without additional pressing of the button, thereby improving the convenience of operation of the electronic device.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention.

The optical input device according to the present invention is applied to an electronic device, including but not limited to a smart phone (PDA Phone, Smart Phone), a portable navigation device (PND), Portable electronic devices such as a Portable Media Player (PMP), a Mobile TV, a Personal Digital Assistant (PDA), or an Ultra Mobile PC (UMPC). In the following detailed description of the present invention, a notebook computer will be the preferred embodiment of the present invention. The drawings are to be considered as illustrative and not restrictive.

FIG. 1 and FIG. 2 are perspective views showing an optical input device and an electronic device of the present invention. The optical input device 100 of the present invention is applied to an electronic device 200, and the electronic device 200 can perform at least one preset function, such as enabling a video player, window shift control, e-mail, and browsing. Execution functions, etc., but not limited to this.

The optical input device 100 includes a light source generator 110 and a photosensitive plate 120. The light source generator 110 of the present invention can be applied to a stylus or a stylus, and the light source generator 110 has a body 111 and at least one light source 112. The inside of the body 111 has an accommodating space on one end of the body 111. A through hole 1111 is defined, and the light source 112 is disposed in the body 111 and faces the through hole 1111. The light source 112 can emit a light through the through hole 1111 of the body 111 to form a light pattern image 1121. The shape of the light pattern image 1121 corresponds to the hole shape of the through hole 1111. The through hole 1111 disclosed in the present invention has a cross shape, so that the formed light pattern image 1121 has a cross formed by four long rectangular patterns. Graphics. However, those skilled in the art can also design the through hole 1111 of the body 111 to be any geometric shape, and is not limited to this embodiment. Alternatively, a lens (not shown) or a light shielding sheet may be added to the through hole 1111 to generate different light pattern images 1121 by the principle of light refraction or light blocking. In addition, the light source 112 disclosed in the present invention may be a light emitting diode (LED) or a laser diode or the like to emit light having a directivity characteristic, which is not disclosed by the present invention. The embodiments are limited.

The inside of the photosensitive plate 120 has a microprocessor 121, and the photosensitive plate 120 has a universal serial bus (USB), which is electrically connected to the microprocessor 121. One side of the electronic device 200 is provided with a universal serial bus bar 210 for electrically inserting the universal serial bus bar plug 124 therein so that the photosensitive plate 120 and the electronic device 200 are electrically connected. In addition, the optical input device 100 and the electronic device 200 disclosed in the present invention can be electrically connected by using a wireless transmission method, such as infrared transmission or Bluetooth, in addition to being electrically connected by a wired universal serial bus interface. The (bluetooth) transmission mode does not transmit the control signal in the wired manner disclosed in this embodiment.

The surface (i.e., the upper surface) of the photosensitive web 120 is provided with a photo sensor 122, and a photosensitive region is formed on the surface of the photosensitive web 120. It should be noted that the photo sensor 122 disclosed in the present invention may be a Charged Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS), but is not limited thereto. .

Please continue to refer to the action diagrams shown in "Figure 2" and "3A" to "3D". The light pattern image 1121 generated by the light source generator 110 of the present invention is projected onto the photosensitive plate 120. As shown in FIG. 3A, when the light source generator 110 rotates relative to the photosensitive plate 120, the light source generator 110 generates The light pattern image 1121 is rotated by an angle from the original positive symmetrical cross pattern; or as shown in FIG. 3B, when the light source generator 110 is inclined at an angle with respect to the photosensitive web 120, the light pattern generated by the light source generator 110 The image 1121 is elongated by one end of the originally symmetrical cross pattern to become an asymmetrical cross pattern; or as shown in FIG. 3C, when the light source generator 110 is displaced upward relative to the photosensitive plate 120, the light source generator 110 The generated light pattern image 1121 is enlarged in proportion to the original size; or as shown in "3D", when the light source generator 110 is displaced downward relative to the photosensitive plate 120, the light generated by the light source generator 110 The graphic image 1121 is reduced in proportion to the original size. In addition, the light-shielding sheet may be used to change the pattern of the light-pattern image 1121, or the body 111 of the light source generator 110 has a structure with a detachable structure at one end of the through-hole 1111, so that the body can be replaced with a through-hole 1111 of different shapes at any time. In order to achieve the purpose of changing the light pattern image 1121.

At this time, the light sensor 122 continuously captures the dynamic change of the light pattern image 1121, and according to the shape of the light pattern image 1121 (such as "3A map" to "3D map", various shapes of light pattern image 1121 Corresponding to outputting a control signal to the microprocessor 121 for processing the signal. Then, the microprocessor 121 electrically transmits the control signal to the internal portion of the electronic device 200 through the universal serial bus interface interface, and then processes the control signal via the circuit system (not shown) of the electronic device 200 to cause the electronic device 200 to execute. Corresponding to the preset functions of the control signal (such as enabling the video player, window shift control, opening email, opening the browser, moving objects in the program, etc.).

Referring to FIG. 4, the light source generator 110 of the optical input device 100 of the present invention further has a lens 113 disposed inside the body 111 of the light source generator 110 and located between the light source 112 and the through hole 1111. The light emitted from the refracting light source 112 passes through the through hole 1111. The light source 112 of the present invention is focused by the lens 113 to increase its light intensity. The lens 113 disclosed in the present invention may be a lens of various types such as a lenticular lens, a biconcave lens, or a meniscus lens. However, those skilled in the art can select a lens with optimal optical characteristics according to actual use requirements.

As shown in FIG. 5, the photosensitive plate 120 disclosed in the present invention can use a plurality of photosensitive resistors 123 (light) instead of using the photo sensor 122 as shown in FIG. 1 as a sensing element for sensing light. The -dependent resistors are arranged in the photosensitive region, and the plurality of photoresistors 123 are electrically connected to the microprocessor 121 inside the photosensitive plate 120 to dynamically capture the shape change of the optical image. That is, when the light source generator 110 projects a light pattern image 1121 to the photosensitive area of the photosensitive plate 120, the resistance of the photosensitive resistor 123 that senses the light intensity is reduced, thereby generating a control signal output to the microprocessor 121. The microprocessor 121 transmits a control signal to the electronic device 200 to cause the electronic device 200 to perform a preset function corresponding to the control signal.

The electronic device 300 disclosed in the present invention includes a main body 310 and at least one light source generator 110. The main body 310 has a microprocessor 121 and a circuit system (not shown) for controlling the electronic device 300 to perform a preset function (for example, opening a video player, window shift control, opening an email, opening a browser, etc.) . The surface of the main body 310 (ie, the upper surface) has a photosensitive plate 120. A photosensitive sensor 122 is disposed on the photosensitive plate 120, and a photosensitive region is formed on the surface of the photosensitive plate 120, and the photo sensor 122 is coupled with the micro sensor. The processor 121 is electrically connected. It should be noted that the photo sensor 122 disclosed in the present invention may be a Charged Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS), but is not limited thereto. .

The light source generator 110 of the present invention can be applied to a stylus or a stylus, and the light source generator 110 has a body 111 and a light source 112. The body 111 has an accommodating space therein, and is opened on one end surface of the body 111. There is a through hole 1111. The light source 112 is disposed in the body 111 and faces the through hole 1111. The light source 112 can emit a light through the through hole 1111 of the body 111 to form a light pattern image 1121. The shape of the light pattern image 1121 corresponds to the hole shape of the through hole 1111. The through hole 1111 of the body 111 can also be designed into any geometric shape, and a lens or a light shielding film can also be used. Changing the pattern of the light pattern image 1121 is not limited to the embodiment. In addition, the light source 112 disclosed in the present invention may be a light emitting diode (LED) or a laser diode or the like to emit light having directivity.

Please refer to the action diagrams shown in Figure 6 and Figure 7A to Figure 7D. The light pattern image 1121 generated by the light source generator 110 of the present invention is projected onto the photosensitive plate 120, and when the light source generator 110 is rotated, tilted by an angle, moved upward, or moved downward with respect to the photosensitive plate 120, The light pattern image 1121 generated by the light source generator 110 is changed correspondingly to the original shape and size. At this time, the light sensor 122 continuously captures the dynamic change of the light pattern image 1121, and correspondingly outputs a control signal to the microprocessor 121 according to the shape of the light pattern image 1121, so that the electronic device 200 performs the corresponding one. The preset function of the control signal. In addition, the light-shielding sheet may be used to change the pattern of the light-pattern image 1121, or the body 111 of the light source generator 110 has a structure with a detachable structure at one end of the through-hole 1111, so that the body can be replaced with a through-hole 1111 of different shapes at any time. In order to achieve the purpose of changing the light pattern image 1121.

Referring to FIG. 8 , the light source generator 110 of the electronic device 300 of the present invention further has a lens 113 disposed inside the body 111 of the light source generator 110 and located between the light source 112 and the through hole 1111 for refraction. The light emitted by the light source 112 passes through the through hole 1111. The light source 112 of the present invention is focused by the lens 113 to increase its light intensity. The lens 113 disclosed in the present invention may be a lens of various types such as a lenticular lens, a biconcave lens, or a meniscus lens. However, those skilled in the art can select a lens with optimal optical characteristics according to actual use requirements.

As shown in FIG. 9, the photosensitive plate 120 of the present invention can be used as a sensing element for sensing light, in addition to the photo sensor 122 as shown in FIG. 6, a plurality of photoresistors 123 (light- The dependent resistors are arranged in the photosensitive region, and the plurality of photoresistors 123 are electrically connected to the microprocessor 121 inside the main body 310 to dynamically capture the shape change of the optical image. That is, when the light source generator 110 projects a light pattern image 1121 to the photosensitive area of the photosensitive plate 120, the resistance of the photosensitive resistor 123 that senses the light intensity is reduced, thereby generating a control signal output to the microprocessor 121. The microprocessor 121 transmits a control signal to the electronic device 300 to cause the electronic device 300 to perform a preset function corresponding to the control signal.

FIG. 10 is a perspective view of an electronic device according to another embodiment of the present invention. The electronic device 400 of the present embodiment is a tablet-type computer input device similar to a tablet, and includes a main body 410 and a light source generator. 110. The main body 410 has a circuit system (not shown) and a photo sensor 122 electrically connected to the circuit system. The photo sensor 122 disclosed in the present invention can be a Charged Coupled Device (CCD). Or Complementary Metal-Oxide Semiconductor (CMOS), but not limited to this.

The top surface of the main body 410 is provided with an opening for the light source generator 110 to be mounted therein and normally held on the main body 410 without falling off, and the light source generator 110 can be movably displaced at the same position relative to the main body 410. A light source 112 is disposed inside the body 111 of the light source generator 110 and faces the light sensor 122. The light source 112 can emit a light through the body 111 and form a light pattern image 1121 on the light sensor 122. The light source 112 disclosed in the present invention may be a light emitting diode (LED) or a laser diode or the like to emit light having directivity, which is not disclosed by the present invention. The embodiments are limited.

When the light source generator 110 is rotated relative to the main body 410, tilted at an angle, moved upward, or moved downward, the light pattern image 1121 generated by the light source generator 110 is changed correspondingly to the original shape and size. At this time, the photo sensor 122 continuously captures the dynamic change of the optical graphic image 1121, and correspondingly outputs a control signal to the circuit system according to the shape of the optical graphic image 1121, so that the electronic device 400 transmits the wired or wireless manner. A control signal to the computer device (not shown).

As shown in FIG. 11 , the present invention further discloses an optical input system including a light source generator 110, a working plane 130, and an optical graphic image capturing device 140. The light source generator 110 of the present invention can be applied to a stylus or a stylus, and the light source generator 110 has a body 111 and a light source 112. The body 111 has an accommodating space therein, and is opened on one end surface of the body 111. There is a through hole 1111. The light source 112 is disposed in the body 111 and faces the through hole 1111. The light source 112 can emit a light through the through hole 1111 of the body 111 to form a light pattern image 1121. The shape of the light pattern image 1121 corresponds to the hole shape of the through hole 1111. The through hole 1111 of the body 111 can also be designed into any geometric shape, and a lens or a light shielding film can also be used. Changing the pattern of the light pattern image 1121 is not limited to the embodiment. In addition, the light source 112 disclosed in the present invention may be a light emitting diode (LED) or a laser diode or the like to emit light having directivity.

The optical graphic image capturing device 140 of the present invention is electrically connected to the electronic device 500 and faces the working plane 130 to capture an image on the working plane 130. The optical image capturing device 140 of the present invention is a webcam, but not limited thereto, and any image capturing device may be selected as the optical graphic image capturing device 140 of the present invention. The light pattern image 1121 generated by the light source generator 110 is projected onto the working plane 130. However, the working plane 130 of the present invention is a flat pad, and the table top can be directly used as the working plane 130 of the present invention. When the light source generator 110 is rotated relative to the working plane 130, tilted by an angle, moved upward, or moved downward, the light pattern image 1121 generated by the light source generator 110 is changed corresponding to the original shape and size. . At this time, the optical image capturing device 140 continuously captures the dynamic change of the optical graphic image 1121 projected on the working plane 130, and correspondingly outputs a control signal to the electronic device 500 according to the shape of the optical graphic image 1121. The electronic device 500 performs a preset function corresponding to the one control signal.

The optical input device and the electronic device disclosed in the present invention provide a signal input device different from the conventional technology, which is used to control the electronic device to perform phase by capturing the dynamic change optical pattern of the light pattern image by the photosensitive plate. The corresponding preset function eliminates the need for additional pressing of the button, so that the user can quickly and easily issue different control commands to the electronic device, thereby improving the convenience of operation.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the spirit of the invention is subject to change. Therefore, the scope of patent protection of the present invention is subject to the scope of the patent application attached to the specification.

100. . . Optical input device

110. . . Light source generator

111. . . Ontology

1111. . . Through hole

112. . . light source

1121. . . Light graphic image

113. . . lens

120. . . Photosensitive plate

121. . . microprocessor

122. . . Light sensor

123. . . Photoresistance

124. . . Universal serial bus plug

130. . . Work plane

140. . . Light graphic image capturing device

200. . . Electronic device

140‧‧‧Light graphic image capture device

200‧‧‧Electronic devices

210‧‧‧General Sequence Bus 埠

300‧‧‧Electronic devices

310‧‧‧ Subject

400‧‧‧Electronic devices

410‧‧‧ Subject

500‧‧‧Electronic devices

1 is a perspective view of an optical input device according to an embodiment of the present invention;

2 is a perspective view showing the optical input device and the electronic device electrically connected to each other according to an embodiment of the present invention;

3A to 3D are schematic views showing the operation of the optical input device according to an embodiment of the present invention;

4 is a perspective view of an optical input device having a lens according to an embodiment of the present invention;

5 is a perspective view showing an optical input device using a photoresistor as a photosensitive plate according to an embodiment of the present invention;

6 is a perspective view of an electronic device according to an embodiment of the invention;

7A to 7D are schematic views showing the operation of the electronic device according to an embodiment of the present invention;

8 is a perspective view of an electronic device having a lens according to an embodiment of the invention;

9 is a perspective view of an electronic device using a photoresistor as a photosensitive plate according to an embodiment of the present invention;

FIG. 10 is a perspective view of an electronic device according to another embodiment of the present invention;

Figure 11 is a perspective view of an optical input system according to another embodiment of the present invention.

110. . . Light source generator

111. . . Ontology

112. . . light source

1121. . . Light graphic image

120. . . Photosensitive plate

121. . . microprocessor

122. . . Light sensor

124. . . Universal serial bus plug

200. . . Electronic device

210. . . Universal sequence bus

Claims (10)

An optical input device is applied to an electronic device, the optical input device includes: a light source generator having a body and at least one light source disposed in the body and emitting a light through the body Forming a light pattern image; and a photosensitive plate electrically connected to the electronic device, the photosensitive plate having a microprocessor therein; wherein the light pattern image generated by the light source generator is projected onto the surface of the photosensitive plate The squeegee captures the dynamic change of the optical image and correspondingly outputs a control signal to the microprocessor, and the microprocessor transmits the control signal to the electronic device. The optical input device of claim 1, wherein the light source generator further has a lens disposed in the body for refracting the light to pass through the body. The optical input device of claim 1, wherein the photosensitive plate is provided with a photo sensor electrically connected to the microprocessor, and the photo sensor is configured to dynamically capture a shape change of the optical image image, and Corresponding to output the control signal to the microprocessor. The optical input device of claim 1, wherein the photosensitive plate has a plurality of photoresistors electrically connected to the microprocessor, and the photoresistors are used to dynamically capture shape changes of the optical image and corresponding The control signal is output to the microprocessor. An electronic device comprising: a main body having a microprocessor inside, a surface of the main body has a photosensitive plate electrically connected to the microprocessor; and a light source generator having a body and at least one light source disposed in the body, and emitting a light through the body to form a light image image; wherein the light pattern image generated by the light source generator is projected onto the photosensitive plate In the surface, the photosensitive plate captures a dynamic change of the optical image and correspondingly outputs a control signal to the microprocessor, and the electronic device performs a corresponding preset function. The electronic device of claim 5, wherein the light source generator further has a lens disposed in the body for refracting the light to pass through the body. The electronic device of claim 5, wherein the photosensitive plate is provided with a light sensor electrically connected to the microprocessor, wherein the light sensor is configured to dynamically capture a shape change of the light graphic image and correspondingly The control signal is output to the microprocessor. The electronic device of claim 5, wherein the photosensitive plate has a plurality of photoresistors electrically connected to the microprocessor, and the photoresistors are used to dynamically capture shape changes of the optical image and corresponding outputs. The control signal is to the microprocessor. An optical input system is applied to an electronic device, the optical input system includes: a light source generator having a body and at least one light source, the light source is set In the body, a light is emitted through the body to form a light pattern image; a light pattern image capturing device is coupled to the electronic device; and a working plane; wherein the light source generator generates The optical graphic image is projected onto the surface of the working plane, and the image capturing device captures a dynamic change of the optical graphic image, and a corresponding control signal is generated in the electronic device. The optical input system of claim 9, wherein the optical image capturing device is a web camera.